Blueberry cream cheese streusel donuts

I didn’t want to turn on the oven it’s so hot out, so something that would fit into my toaster oven – my donut pan! Delicious! BUT the cream cheese layer wasn’t pronounced enough for me and seemed to bake into the cake. So next time I am going to mix some cream cheese with a tablespoon of egg white and sweetener and layer that on instead. But these donuts held up well and are moist and tender. I zested a whole lemon into the streusel topping. Makes 12 donuts.